2025 Division B Events

Alaska Science Olympiad 2025 consisted of 17 Division B Events. Consult the Science Olympiad 2025 Division B Rules Manual for detailed event descriptions and rules.

Participants solve problems and answer questions about agricultural sciences using their knowledge of ecology, animal and plant biology, and environmental chemistry.
Prior to the competition, teams will design, construct, and calibrate a single device capable of launching projectiles onto a target and collect data regarding device parameters and performance.
An assessment of the anatomy and physiology for the human Cardiovascular, Lymphatic, and Excretory systems.
In this event, teams cryptanalyze and decode encrypted messages using cryptanalysis techniques for historical and modern advanced ciphers.
In this event, given a scenario, a collection of evidence, and possible suspects, students will perform a series of tests. The test results along with other evidence will be used to solve a crime.
Participants use investigative skills in the scientific study of disease, injury, health and disability in populations or groups of people.
Participants challenged their ability to design, conduct and report the findings of an experiment entirely on site.
In this event, teams identify and classify fossils and demonstrate their knowledge of ancient life. Tasks will be related to interpretation of past environments and ecosystems, adaptations, evolutionary relationships, and the use of fossils in dating and correlating rock units.
In this event, prior to the tournament, teams will construct, collect data on test flights, analyze and optimize a free flight rubber-powered helicopter to achieve maximum time aloft.
In this event, participants will use scientific process skills involving qualitative and quantitative analyses to demonstrate an understanding of the factors that influence world climate and climate change through the interpretation of climatological data, graphs, charts and images.
In this event, prior to the competition, participants design, build, test, and document a Rube Goldberg®-like Device that completes required Start and Final Actions through a series of specific actions.
This event is about chemical properties and effects of specified toxic and therapeutic chemical substances, with a focus on household and environmental toxins or poisons.
Participants will demonstrate an understanding of the formation and early-stage evolution of stars and their observation across the electromagnetic spectrum.
In this event, participants will answer interpretive questions that may use one or more state highway maps, USGS topographic maps, Internet-generated maps, a road atlas, or satellite/aerial images.
Teams will design and build a tower-like wooden structure prior to the competition. The structural efficiency of each team's tower will be tested by applying an increasingly heavy load upon the tower until either the structure fails, the time is up, or the maximum load of 15,000 grams.
One participant from each team wrote a description of an object and how to build it. Another teammate constructed the object from this description.